Gareth Jones, whose team of archaeologists led the excavation along with a team from Winchester University, said:

"It was both emotional and exciting - a truly memorable moment for everyone involved.

"The site was know by the team for many years and along with the next of kin an excavation was planned to answer some questions that remained outstanding for 77 years.

"The team would like to thank the Ministry of Defence, who gave permission for the excavation under the protection of military remains act, the land owner and Winchester University who all helped make the project such a memorable occasion for the family."

Military records show Sgt Lewis' Spitfire, model number N3294, had been used by 222 Squadron at RAF Duxford before flying in the Dunkirk evacuation.

It was then stationed at RAF Kirton Lindsey where Sgt Lewis was based.

The military report into the fatal crash said:

"On 4th July 1940 the pilot of this aircraft was undertaking a gunnery training flight and when he was flying in cloud he lost control, the aircraft dived into the ground near Withernsea.

"Sadly he was killed in the resulting crash but the exact location is not yet known."

Following last week's excavation, a minute's silence was held in memory of Sgt Lewis along with a Spitfire flypast from RAF Duxford.

The excavation was also filmed as part of a documentary which is expected to be released next year.